Has anyone rebuilt the power steering gearbox from their 84 or 85 4Runner or pickup? Mine has started leaking out of the input shaft seal and so far I have removed it from the truck and removed the 4 bolts that hold the worm gear shaft in. Does anyone have experience rebuilding these or have a FSM or diagram that shows how the rest of the box comes apart? I can get a new seal kit from toyota for about $120, or worst case scenario a rebuilt steering box for about $350.

 

here is a post on modifying the box for hydro assist. it has a lot of good info in it and should help you to at least take apart the box and get things back together.
http://board.marlincrawler.com/index...7310#msg107310

 

http://www.trademotion.com/partlocat...=8&catalogid=1

This is sort of a pic... kinda

 

Sorry if i didnt specify earlier, this is for an 84-85 model, meaning solid front axle with the push-pull steering box, not the 86-up IFS box. Thanks for the replies though.

 

nice link seaflea.

no mention of fluid to use. [w/o power steering] i heard that using a (thicker) synthetic gear oil w/molybdenum? or MOLY_G is also good for the box parts.

 

Thanks. Although, I wasnt paying attention to the location of this thread.

Sorry, I dont have any information on the non IFS box.

 

I was able to locate a complete PDF of an 85 4Runner FSM. Thanks for the help! I know the 84-85 steering setup isnt very common and theres not a whole lot of info out there about it. A seal kit and it should be ready to roll by the end of the week!

 

That will work, anything 4WD from '86-'95.

 

IIRC, 2wd steering boxes(nonpower steering) use gear oil....the IFS boxes and SA push pulls(power steering equiped) use ATF.

 

Just replace the seal on the screw-on disk for the input shaft. I had to do it to mine...

 

P/S Worm shaft seal,
NAPA part number "NOS7007" or just 7007

 

I'm getting ready to lift my 85 Toyo Extra Cab, and was told that when I convert it to high steer, I'll need to put a steering box from and IFS on it. I'm guessing that when I find a used one, it'll likely need rebuilding if possible.

Any suggestions on how to proceed??

 

Buying a rebuilt one is probably a good way to go. DIY rebuild write-up below:
- http://web.archive.org/web/200605150.../taco/box.html

 

Thanks much for the tip. Sounds like I asked in the right place!!!